Which enzyme is responsible for facilitating the hydrogen bonding

Exothermic,  physical change after it is already baked

False, as a substance changes from a solid to a liquid and from a liquid to a gas the molecules get farther apart from each other

(no3)⁻n has oxidation number x,o has oxidation number -2.(x*1 -2*3) charge of the nitrate ion, and we know that charge of the nitrate ion =-1.so,(x*1 -2*3) =-1x-6=-1x=+5answer a. +5.